CBOR WG Meeting - Interim 20-09
Wednesday, May 20, 2020, 17:00 - 18:00 CEST
Chairs: Francesca Palombini, Jim Schaad

Recordings: https://youtu.be/TXGiurW_bYI

ATTEND LIST:
    Jim Schaad
    Carsten Bormann
    Laurence Lundblade
    Michael Richardson
    Peter Yee
    Francesca Palombini
    Henk Birkholz
    Shuai Zhao


Agenda:

AP Francesca: meeting request for IETF 108 50'

* CBOR specification status : Carsten
  https://tools.ietf.org/html/draft-ietf-cbor-7049bis-13
CB: One review from Michael came in with some issues.  Most of the issues are done
Getting very close to the axis on the asymptotic curve towards perfection
MR: Have not read the email from yesterday let alone today.  But expect it to be fine
CB: Continue w/ back and forth on the mailing list to close
Changes from 7049 section in appendix needs to be finished.
Both in appendix and some in introduction.  MR has suggested some changes to introduction that look good.
JS: IESG requires this section in the document
FP: Expect an update by the EOW?
Need to look at the diffs for shepard review changes

  - unknown tag conclusion
      (mail thread here: https://mailarchive.ietf.org/arch/msg/cbor/S6TmVACm7I6tHrbyDwVvgOikIM8/)
    FP: Does this need any discussion?
    CB: Made very small change in PR 187
    After reading discussion did not think any changes were required.

  - mcr review status
      (mail thread here: https://mailarchive.ietf.org/arch/msg/cbor/QOk_hrJoF8NcuiorkeXex9mUH4w/)
Covered above, needs review from MR to close
LL: To summarize current understanding, if you put in a tag you need to mean it.
Expect failures from decodes that do not understand it.

* CBOR notable tags : Carsten
  https://tools.ietf.org/html/draft-bormann-cbor-notable-tags-01
CB: Saying that this document should exist for a while.  Now pushed to top because of the ?? tag
Questions: 
1. Is this a document for the WG?  Right now just have some commentary on registered tag
thus a personal perspective.   Don't need immediate answer but at some point needs to be
discussed.  If so then need to adopt prior to the reference of CBOR bis being done.
FP: Does this draft never need to finalize as an RFC? 
CB: Yes but would then go to indenpendent stream to have a document in the same stream
FP: (Individual) think that it would make sense as WG document.
JS: (Individual) Ditto.
FP: If a WG document, how do we decide on when to finish and publish
CB: Spet2023 - 10 years of CBOR
Will continue to get notible tags coming in - just some what arbitrary
FP: (Chair) Is this in the charter?
CB: Need to re-read to figure that out.
HB: Do you see other candidates that you expect to come into scope?
CB: Almost complete now becuse it reflects the registry except for one fuzzy tag.
Might be incomplete becuase of new tags or tags where the authors don't permit inclusion of text
FP: Disucssions started.  Should get wider reviews from the ML.  Chairs need to discuss with AD for scope.

* AoB
CB: SDF is finishing in ODM.  ODM uses elements of JSON schema (JSONschema.org) for definitions.
Have gotten them interested in using CDDL for describing the language itself.
Draft exists in Carsten's github repository.
Working on tooling to generate and check.
Will be asking IETF if intersted in being the home of this work.
May also get disucussion on having the JSON Schema standardized as well.
Three different possible outcomes based on how much of the JSON schema the IETF might want to pickup.
If you need to have the converter then tell Carsten and he will make sure that it works for you.

FP: Next meeting 3 June, also starting agenda for the IETF
CB: For 3 June suggest ABNF work.  About half done.
FP: Need to restart CDDL discussion - current focusing WG effort on CBOR bis.